Hedge Accounting (Summary Of Hedged Transactions That Affect Earnings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in OCI on Derivatives (Effective Portion)	$ (183)
Loss Reclassified from OCI into Income (Effective Portion)	68
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in OCI on Derivatives (Effective Portion)	182	$ 200
Loss Reclassified from OCI into Income (Effective Portion)	68	14
Designated as Hedging Instrument [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss Reclassified from OCI into Income (Effective Portion)	68	14
Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in OCI on Derivatives (Effective Portion)	$ 182	$ 200